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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 3.6L - DTCS P0695 To P105A >> DTC Troubleshooting >> P0850-Park/Neutral Switch Performance >> Possible Causes

Possible Causes

Possible Causes
TRANSMISSION RANGE SENSOR (TRS) WIRING ISSUES
COMMUNICATION FAILURE BETWEEN THE PCM AND THE TCM
TRANSMISSION CONTROL MODULE (TCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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